A national lockdown as Covid-19 cases tick up is "a measure of last resort," the co-chair of Joe Biden's coronavirus taskforce, Vivek Murthy, said Sunday.

Americans can expect that about 25 to 30 million people could be vaccinated each month afterward, said Moncef Slaoui, co-lead of Operation Warp Speed.

Pfizer Inc PFE.N has launched a pilot delivery program for its experimental COVID-19 vaccine in four U.S. states, as the U.S. drugmaker seeks to address distribution challenges facing its ultra-cold storage requirements

A rapid finger-prick test designed to show whether a person has previously been infected with SARS-CoV-2 is significantly less accurate than earlier research suggested, scientists report in a new study.

Who will be the first to get COVID-19 vaccines? No decision has been made, but the consensus among many experts in the U.S. and globally is that health care workers should be first, said Sema Sgaier of the Surgo Foundation, a nonprofit group working on vaccine allocation issues. An expert panel advising the U.S. Centers ...

Amazon.com Inc. unveiled its biggest push into selling prescription drugs with the launch of a digital pharmacy and discounts for paying U.S. Prime members that sent shock waves through shares of drugstore chains and distributors.